Email securityDNS10 Apr 2026 · 7 min read

SPF, DKIM, DMARC: the afternoon that stops people sending invoices as you

The FBI tracks billions of dollars a year lost to attackers who email your customers pretending to be you, and the ACCC logs tens of millions more from Australian businesses. The DNS records that bounce the forged mail take four hours to set up, cost nothing, and most businesses still don't have them.

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